JPS5855319B2 - Hydraulic rock drill control device - Google Patents
Hydraulic rock drill control deviceInfo
- Publication number
- JPS5855319B2 JPS5855319B2 JP15253677A JP15253677A JPS5855319B2 JP S5855319 B2 JPS5855319 B2 JP S5855319B2 JP 15253677 A JP15253677 A JP 15253677A JP 15253677 A JP15253677 A JP 15253677A JP S5855319 B2 JPS5855319 B2 JP S5855319B2
- Authority
- JP
- Japan
- Prior art keywords
- hydraulic
- rotation
- feed
- pressure switch
- impact
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
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- Earth Drilling (AREA)
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
Description
【発明の詳細な説明】
この発明は、さく岩槻の送りと回転と打撃とを自動制御
する装置に関し、特に油圧式さく岩槻において、送りシ
リンダの圧力低下を検出して送９を後退させ、又、回転
トルクの上昇を検出して送りを後退させると共に打撃力
を低下させることを自動的に行ない、岩質によってロン
ドを取られるのを防止できるようにする。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device for automatically controlling the feed, rotation, and impact of a rock drill, particularly in a hydraulic rock drill, which detects a pressure drop in the feed cylinder and retracts the feed 9. , detecting the increase in rotational torque and automatically retracting the feed and lowering the striking force to prevent the rond from being taken away by the rock quality.
一般に穿孔作業に使用される濾く岩槻は、空気式のもの
から油圧式のものに進歩して来ている。Filtering rocks commonly used for drilling work have progressed from pneumatic type to hydraulic type.
油圧式のものは穿孔速度がはるかに速くなっているので
、穿孔中に岩の空洞や軟岩層に遭遇すると、ロンドがそ
のまま前進し、岩に挾まれてロンドが全く動かなくなっ
てしまうことがある。The hydraulic type has a much faster drilling speed, so if it encounters a rock cavity or soft rock layer while drilling, the rondo will continue to move forward, and the rondo may become stuck in the rock and become unable to move at all. .
これを防ぐ為には、岩の空洞や軟岩を機械が検出して、
ロンドが取られる前に、ロンドの送りを戻すか、止める
か又は穿孔速度を下けるか、何らかの手段がなされなけ
ればロンドその他を損傷する事故を生ずる。To prevent this, machines must detect cavities and soft rocks,
Unless some measure is taken to reverse or stop the rond feed or reduce the drilling speed before the rond is removed, an accident that may damage the rond or the like may occur.
この発明は、特に油圧さく岩槻のかかる問題を解決する
ものである。This invention specifically solves this problem with hydraulic Iwatsuki.
而してこの発明の目的は、穿孔中に岩質によってロンド
を取られるのを自動的に防止できる装置を提供するにあ
り、又この発明の目的は、ロンドその他部品の破損を未
然に防止する装置を提供するにあり、更にこの発明の目
的は、穿孔作業の総合的な能率を向上することができる
装置を提供するにある。Therefore, an object of the present invention is to provide a device that can automatically prevent the rond from being removed by rock during drilling, and an object of the present invention is to provide a device that can prevent the rond and other parts from being damaged. Another object of the present invention is to provide an apparatus that can improve the overall efficiency of drilling operations.
即ちこの発明は、図示する実施例の如く、打撃用、回転
用、送り用の各油圧ポンプ１，２．３から夫々打撃用、
回転用、送り用の油圧アクチュエータ９，１０，１１に
圧油を供給して駆動し、制御用油圧ポンプ４から打撃用
、回転用、送り用の各手動パイロット弁２１，２２．２
３を介して夫夫操作回路に接続し、前記各アクチュエー
タ９゜１０．１１の作動を制御する油圧回路において、
送り用足主管路１７ａに圧力スイッチ３３．３４を接続
し、該圧力スイッチ３３．３４からの電気信号を受けて
作動する正逆２位置の電磁切換弁２９を送り用パイロッ
ト管路３６ａ、３６ｂの途中に挿入して設けたことを特
徴上する油圧さく岩槻の制御装置を特定発明とし、更に
、打撃用、回転用、過多用の各油圧ポンプ１，２．３か
ら夫々打撃用、回転用、送り用の油圧アクチュエータ９
，１０゜１１に圧油を供給して駆動し、制御用油圧ポン
プ４から打撃用、回転用、送り用の各手動パイロット弁
２１，２２．２３を介して夫々操作回路に接続し、前記
各アクチュエータ９，１０．１１の作動を制御する油圧
回路において、送り用足主管路１７ａに圧力スイッチ３
３．３４を接続し、回転用足主管路１５ａに圧力スイッ
チ３２を接続し、前記何れかの圧力スイッチから電気信
号を受けて作動する正逆２位置の電磁切換弁２９を送多
用パイロット管路３６ａ、３６ｂの途中に挿入して設け
たことを特徴とする油圧さく岩槻の制御装置を第一の併
合発明とし、更に、打撃用、回転用、送り用の各油圧ポ
ンプ１，２．３から夫々打撃用、回転用、送り用の油圧
アクチュエータ９，１０．。That is, in the present invention, as in the illustrated embodiment, the hydraulic pumps 1, 2.3 for impact, rotation, and feed are connected to the hydraulic pumps 1, 2.3 for impact, rotation, and feed, respectively.
Hydraulic actuators 9, 10, 11 for rotation and feed are supplied with pressure oil to drive them, and the control hydraulic pump 4 is used to control manual pilot valves 21, 22.2 for impact, rotation, and feed.
A hydraulic circuit connected to the husband operation circuit via 3 and controlling the operation of each of the actuators 9, 10, and 11,
A pressure switch 33.34 is connected to the main feeding leg pipe 17a, and a two-position electromagnetic switching valve 29, which operates in response to an electric signal from the pressure switch 33.34, is connected to the feeding pilot pipe 36a, 36b. A control device for a hydraulic pump Iwatsuki, which is characterized by being inserted in the middle, is defined as a specific invention, and furthermore, the control device for a hydraulic pump 1, 2.3 for impact, rotation, and Hydraulic actuator 9 for feeding
, 10° 11 are supplied with pressure oil to drive them, and are connected to the operating circuit from the control hydraulic pump 4 through manual pilot valves 21, 22, 23 for striking, rotation, and feeding, respectively. In the hydraulic circuit that controls the operation of the actuators 9, 10.11, a pressure switch 3 is installed in the feed leg main conduit 17a.
3.34 is connected, a pressure switch 32 is connected to the rotation foot main pipe 15a, and a two-position electromagnetic switching valve 29, which operates upon receiving an electrical signal from any of the pressure switches, is connected to the multi-feeding pilot pipe. The first combined invention is a hydraulic pump Iwatsuki control device characterized by being inserted in the middle of the hydraulic pumps 36a and 36b, and further includes hydraulic pumps 1, 2.3 for impact, rotation, and feed. Hydraulic actuators 9, 10 for impact, rotation, and feed, respectively. .
１１に圧油を供給して駆動し、制御用油圧ポンプ４から
打撃用、回転用、送り用の各手動パイロット弁２１，２
２．２３を介して夫々操作回路に接続し、前記各アクチ
ュエータ９，１０．１１の作動を制御する油圧回路にお
いて、送り用足主管路１７ａに圧力スイッチ３３．３４
を接続し、回転用足主管路１５ａに圧力スイッチ３２を
接続し、前記何れかの圧力スイッチから電気信号を受け
て作動する正逆２位置の電磁切換弁２９を送多用パイロ
ット管路３６ａ、３６ｂの途中に挿入して設け、更に回
転用足主管路１５ａに圧力スイッチ３１を接続し、該圧
力スイッチ３１からの電気信号を受けて作動する開開２
伎置の電磁切換弁２８を打撃用主管路８のドレン回路２
８ｂに接続したことを特徴とする油圧さく岩槻の制御装
置を第二の併合発明とする。The control hydraulic pump 4 supplies each manual pilot valve 21, 2 for impact, rotation, and feed with pressure oil.
In the hydraulic circuits connected to the operating circuits through 2.23 and controlling the operation of each of the actuators 9, 10.11, a pressure switch 33.34 is connected to the main feeding leg conduit 17a.
A pressure switch 32 is connected to the main rotation foot pipe 15a, and an electromagnetic switching valve 29 with two forward and reverse positions, which operates upon receiving an electric signal from any of the pressure switches, is connected to the pilot pipes 36a and 36b for multiple feeding. A pressure switch 31 is inserted in the middle of the rotary foot main conduit 15a, and a pressure switch 31 is connected to the opening 2 which is operated by receiving an electric signal from the pressure switch 31.
The electromagnetic switching valve 28 in the box is connected to the drain circuit 2 of the main conduit 8 for impact.
A control device for a hydraulic Iwatsuki, which is characterized in that it is connected to 8b, is a second combined invention.
この発明の実施例を図面を参照して説明する。Embodiments of the invention will be described with reference to the drawings.
第１図はこの発明になる油圧さく岩槻の油圧回路を示し
、打撃用油圧ポンプ１２回転用油圧ポンプ２、送り用油
圧ポンプ３．制御用油圧ポンプ４は歯車箱５を介して原
動機６に連結して駆動され、何れも油タンク７から作動
油を吸上げて、圧油を夫々のアクチュエータに供給して
作動でせる。FIG. 1 shows the hydraulic circuit of the hydraulic drilling machine Iwatsuki according to the present invention, which shows a hydraulic pump for striking, a hydraulic pump for 12 rotations, a hydraulic pump for rotating 2, a hydraulic pump for feeding, and a hydraulic pump for feeding 3. The control hydraulic pump 4 is connected to and driven by a prime mover 6 via a gear box 5, sucks up hydraulic oil from an oil tank 7, and supplies pressure oil to each actuator for operation.
打撃用油圧ポンプ１は、主管路８を経て打撃装置９へ接
続される。The striking hydraulic pump 1 is connected to a striking device 9 via a main line 8 .
回転用油圧ポンプ２は、吐出管路１２．油圧作動操作弁
１３．主管路１５ａ。The rotary hydraulic pump 2 has a discharge pipe 12. Hydraulic operated operation valve 13. Main conduit 15a.
１５ｂを経て回転用油圧モータ１０に接続される。It is connected to the rotational hydraulic motor 10 via 15b.
送り用油圧ポンプ３は吐出管路１６．油圧作動操作弁１
４．主管路１７ａ、１７ｂを経て送り用油圧シリンダ１
１に接続される。The feed hydraulic pump 3 is connected to a discharge pipe 16. Hydraulic operation valve 1
4. Hydraulic cylinder 1 for feeding via main pipes 17a and 17b
Connected to 1.
油圧作動操作弁１３．１４は何れも３位置の切換弁で、
夫々正転、逆転、停止に切換えられ、これが中立位置に
あるときは油圧は油タンク７へ戻る。The hydraulic operation valves 13 and 14 are all three-position switching valves,
It is switched to normal rotation, reverse rotation, and stop, respectively, and when these are in the neutral position, the oil pressure is returned to the oil tank 7.
回転用油圧力は吐出管路１２に接続きれたリリーフ弁１
８によりセットされ、送り用油圧力は吐出管路１６に接
続されたリリーフ弁１９によりセットされる。The hydraulic pressure for rotation is provided by the relief valve 1 connected to the discharge pipe 12.
8, and the hydraulic pressure for feeding is set by a relief valve 19 connected to the discharge pipe 16.
制御用油圧ポンプ４は制御回路の為の油圧源となるもの
で、その吐出管路２０はパイロット弁２１．２２．２３
に夫々接続され、その油圧力は吐出管路２０に挺続され
たリリーフ弁２４によりセットてれる。The control hydraulic pump 4 serves as a hydraulic pressure source for the control circuit, and its discharge pipe 20 is connected to pilot valves 21, 22, 23.
The hydraulic pressure is set by a relief valve 24 connected to the discharge pipe 20.
打撃用主管路８にはベント付リリーフ弁２５が接続され
、そのベントに油圧作動遮断弁２６が接続されている。A relief valve 25 with a vent is connected to the main conduit 8 for impact, and a hydraulically operated cutoff valve 26 is connected to the vent.
前記パイロット弁２１と遮断弁２６との間にはパイロッ
ト管路２７が接続される。A pilot pipe line 27 is connected between the pilot valve 21 and the cutoff valve 26.
パイロット弁２１は常時閉の手動２位置の切換弁で、遮
断弁２６は常時開の油圧作動２位置の切換弁であり、パ
イロット弁２１を手動して遮断弁２６を作動させること
によりベント付リリーフ弁２５を作用状態に置くもので
ある。The pilot valve 21 is a normally closed manual 2-position switching valve, and the cutoff valve 26 is a normally open hydraulically operated 2-position switching valve. This places the valve 25 in the active state.
主管路８にはまた、電磁弁２８が接続されている。A solenoid valve 28 is also connected to the main conduit 8 .
電磁弁２８は常時閉の開開２伎置の切換弁で、後述の電
気信号を受けて切換わるものである。The electromagnetic valve 28 is a switching valve that is normally closed and can be opened or opened, and is switched in response to an electric signal, which will be described later.
回転用パイロット弁２２は手動３位置の切換弁で、前記
回転用操作弁１３との間にパイロット管路３０ａ、３０
ｂが接続され、パイロット弁２２を操作して操作弁１３
を正転、逆転、停止に切換えるものである。The rotary pilot valve 22 is a 3-position manual switching valve, and pilot pipes 30a, 30 are connected between it and the rotary operation valve 13.
b is connected, and the pilot valve 22 is operated to open the operation valve 13.
This is used to switch between forward rotation, reverse rotation, and stop.
回転用主管路の正転側管路１５ａには圧力スイッチ３１
．３２が接続され、回転用モータ１０の圧力を検出する
。A pressure switch 31 is installed in the normal rotation side conduit 15a of the main rotation conduit.
．． 32 is connected to detect the pressure of the rotation motor 10.
圧力スイッチ３１は回転用モータ１０のトルクが上昇す
ると、前記電磁弁２８に電気信号を送り、作動させる。When the torque of the rotation motor 10 increases, the pressure switch 31 sends an electric signal to the electromagnetic valve 28 to operate it.
圧力スイッチ３２は回転用モータ１０のトルクが上昇す
ると、後述の電磁弁２９に電気信号を送り、作動宮せる
。When the torque of the rotation motor 10 increases, the pressure switch 32 sends an electric signal to a solenoid valve 29, which will be described later, to be activated.
圧力スイッチ３１のセット圧は圧力スイッチ３２よりも
高くセットしである。The set pressure of the pressure switch 31 is set higher than that of the pressure switch 32.
送り用パイロット弁２３は手動３位置の切換弁で、前記
送り用操作弁１４との間にパイロット管Ｍ３６ａ、３６
ｂが接続でれ、パイロット弁２３を操作して操作弁１４
を正方向、逆方向、停止に切換えるものである。The feed pilot valve 23 is a manual three-position switching valve, and pilot pipes M36a, 36 are connected between it and the feed operation valve 14.
b is connected, operate the pilot valve 23 and open the operation valve 14.
It is used to switch between forward direction, reverse direction, and stop.
パイロット管路３６ａ、３６ｂの途中には電磁弁２９が
挿入でれ、回転用モータ１０のトルクが上昇すると前記
圧力スイッチ３２から罰滋弁２９に電気信号を送り、こ
れを作動させる。An electromagnetic valve 29 is inserted in the middle of the pilot pipes 36a and 36b, and when the torque of the rotation motor 10 increases, an electric signal is sent from the pressure switch 32 to the exhaust valve 29 to activate it.
電磁弁２９は４ポ一ト正逆２位置の切換弁で、操作弁１
４の位置を切換え、送多用シリンダ１１を逆方向に切換
えるものである。The solenoid valve 29 is a four-point forward/reverse two-position switching valve.
4 and the multi-feed cylinder 11 is switched in the opposite direction.
送り用主管路の正側管路１７ａには、圧力上昇時に作動
する圧力スイッチ３３と、圧力低下時に作動する圧力ス
イッチ３４とが接続される。A pressure switch 33 that is activated when the pressure increases and a pressure switch 34 that is activated when the pressure decreases are connected to the positive side conduit 17a of the main feed conduit.
又、パイロット管路の正側管路３６ａには無圧を検出す
る圧力スイッチ３５が接続されている。Further, a pressure switch 35 for detecting no pressure is connected to the positive side pipe line 36a of the pilot pipe line.
第２図は電気回路を示し、前記圧力スイッチ３１．３２
，３３，３４，３５と電磁弁２８．２９の各コイル２８
ａ、２９ ａとにリレーＲ□、Ｒ２Ｒ３，Ｒ４を組合せ
て回路を構成している。FIG. 2 shows the electrical circuit and the pressure switch 31.32
, 33, 34, 35 and each coil 28 of the solenoid valve 28, 29.
A, 29a are combined with relays R□, R2R3, and R4 to form a circuit.
次に作動について説明する。Next, the operation will be explained.
今、送多用シリンダ１１が前週していてＰ１ｋｇ／ｃｒ
／Ｌ２ の圧力で穿孔しているとき、岩の空洞に遭遇し
てＰ２ ｋｇ／ｃｒ／１２の圧力まで下ったとすると、
そのときの圧力降下を圧力Ｊイツチ３３と３４とによシ
検出し、それを第２図の電気回路で構成される制御装置
により電磁弁２９を切換えて送り用シリンダ１１の前進
を後退にする。Currently, the cylinder 11 for high-feeding was used last week and is P1kg/cr.
Suppose you are drilling at a pressure of P2 kg/cr/12 when you encounter a rock cavity and the pressure drops to P2 kg/cr/12.
The pressure drop at that time is detected by the pressure switches 33 and 34, and the solenoid valve 29 is switched by the control device consisting of the electric circuit shown in FIG. .
そのときは電磁弁２９が切換わることによりパイロット
管路３６ａ、３６ｂを逆にするので、操作弁１４が逆に
切換わるからである。This is because in that case, the pilot pipes 36a and 36b are reversed by switching the electromagnetic valve 29, so that the operating valve 14 is switched in the opposite direction.
送り用シリンダ１１の前進又は後退を停止するにはパイ
ロット弁２３を手動して中立位置に戻すことにより行な
われる。The forward or backward movement of the feed cylinder 11 is stopped by manually returning the pilot valve 23 to the neutral position.
そのときは圧力スイッチ３５が無圧を検出して電気回路
に信号を送り、前進または後退の状態にある電気回路を
解除する。At that time, the pressure switch 35 detects no pressure and sends a signal to the electric circuit to release the electric circuit in the forward or backward state.
次に第２図について電気的作動を説明する。The electrical operation will now be described with reference to FIG.
前進送多のときは、圧力スイッチ３３及び３５がオンで
、リレーＲ１及びＲ３が保持されている。During forward feeding, pressure switches 33 and 35 are on, and relays R1 and R3 are held.
軟岩や空洞の為に送多用シリンダ１１の圧力が低下した
ときは、圧力スイッチ３４がオンと７ｐ、リレーＲ２が
保持され、電磁弁２９のコイル２９ａが励磁宮れて弁２
９が切換わり、送り用シリンダ１１が後退する。When the pressure in the multi-feeding cylinder 11 decreases due to soft rock or a cavity, the pressure switch 34 is turned on (7p), the relay R2 is held, and the coil 29a of the solenoid valve 29 is energized to close the valve 2.
9 is switched, and the feed cylinder 11 is moved backward.
それ故ロンドは岩に取られることなく後退する。Therefore, Londo retreats without being taken by the rock.
又、岩質の為に回転トルクが上昇したときは、圧力スイ
ッチ３２がオンになり、リレーＲ２が保持され、電磁弁
２９のコイル２９ａが励磁されて弁２９が切換わり、送
り用シリンダ１１が後退する。Also, when the rotational torque increases due to the rock quality, the pressure switch 32 is turned on, the relay R2 is held, the coil 29a of the solenoid valve 29 is energized, the valve 29 is switched, and the feed cylinder 11 is turned on. fall back.
更に回転トルクが上昇したときは、圧力スイッチ３１が
オンとなり、リレーＲ４により電磁２８のコイル２８ａ
を原線して弁２８が切換わり、圧油をドレンに放出して
打撃力を低下させる。When the rotational torque further increases, the pressure switch 31 is turned on, and the coil 28a of the electromagnetic 28 is activated by the relay R4.
The valve 28 is switched to release pressure oil into the drain and reduce the impact force.
パイロット弁２３を手動にて中立位置に戻すと、圧力ス
イッチ３５がオフとなり、リレーＲ３＊ Ｒ４＋Ｒ，、
Ｒ２が伺れも解除烙れる。When the pilot valve 23 is manually returned to the neutral position, the pressure switch 35 is turned off and relays R3* R4+R,...
Even if R2 is heard, it will be canceled.
以上の説明から明らかなように、この発明によれば、油
圧と電気とによって油圧さく岩槻の自動制御装置を構成
し、穿孔作業の自動化を計り、岩質によってロンドその
他の部品が損傷することを防止し、穿孔能率を向上する
ことができる制御装置が得られる。As is clear from the above description, according to the present invention, an automatic control device for a hydraulic rock drill is constructed using hydraulic pressure and electricity, and the drilling work is automated to prevent damage to the rondo and other parts due to rock quality. A control device is obtained that can prevent this and improve drilling efficiency.
第１図は油圧さく岩槻の油圧回路図、第２図はその電気
回路図である。
図中、１は打撃用油圧ポンプ、２は回転用油圧ポンプ、
３は送り用油圧ポンプ、４は制御用油圧ポンプ、８は打
撃用主管路、９は打撃装置、１０は回転用油圧モータ、
１１は送り用油圧シリンダ、１５ａ、１５ｂは回転用主
管路、１７ａ、１７ｂは送り用主管路、２１，２２，２
３は手動パイロット弁、２８，２９は電磁切換弁、３１
，３２゜３３，３４は圧力スイッチ、３６ａ、３６ｂＵ
送ジ用パイロツト管路である。Figure 1 is a hydraulic circuit diagram of the hydraulic pump Iwatsuki, and Figure 2 is its electrical circuit diagram. In the figure, 1 is a hydraulic pump for impact, 2 is a hydraulic pump for rotation,
3 is a hydraulic pump for feeding, 4 is a hydraulic pump for control, 8 is a main conduit for striking, 9 is a striking device, 10 is a hydraulic motor for rotation,
11 is a hydraulic cylinder for feeding, 15a and 15b are main pipelines for rotation, 17a and 17b are main pipelines for feeding, 21, 22, 2
3 is a manual pilot valve, 28 and 29 are electromagnetic switching valves, 31
, 32° 33, 34 are pressure switches, 36a, 36bU
This is a pilot conduit for feeding.
Claims (1)
撃用、回転用、送り用の油圧アクチュエータに圧油を供
給して駆動し、制御用油圧ポンプから打撃用、回転用、
送り用の各手動パイロット弁を介して夫々操作回路に接
続し、前記各アクチュエータの作動を制御する油圧回路
において、送シ用正主管路に圧力スイッチを接続し、該
圧力スイッチからの電気信号を受けて作動する正逆２位
置の電磁切換弁を送り用パイロット管路の途中に挿入し
て設けたことを特徴とする油圧宮〈岩槻の制御装置。 ２ 打撃用、回転用、送り用の各油圧ポンプから夫々打
撃用、回転用、送り用の油圧アクチュエータに圧油な供
給して駆動し、制御用油圧ポンプから打撃用、回転用、
送り用の各手動パイロット弁を介して夫々操作回路に接
続し、前記各アクチュエータの作動を制御する油圧回路
において、送り用正主管路に圧力スイッチを接続し、回
転用正主管路に圧力スイッチを接続し、前記何れかの圧
力スイッチから電気信号を受けて作動する正逆２位置の
電磁切換弁を送り用パイロット管路の途中に挿入して設
けたことを特徴とする油圧さく岩槻の制御装置。 ３ 打撃用、回転用、送り用の各油圧ポンプから夫々打
撃用、回転用、送り用の油圧アクチュエータに圧油を供
給して駆動し、制御用油圧ポンプから打撃用、回転用、
送り用の各手動パイロット弁を介して夫々操作回路に接
続し、前記各アクチュエータの作動を制御する油圧回路
において、送り用正主管路に圧力スイッチを接続し、回
転用正主管路に圧カスインチを接続し、前記何れかの圧
力スイッチから電気信号を受けて作動する正逆２位置の
電磁切換弁を送り用パイロット管路の途中に挿入して設
け、更に回転用正主管路に圧力スイッチを接続し、該圧
力スイッチからの電気信号を受けて作動する開開２但置
の電磁切換弁を打撃用主管路のドレン回路に接続したこ
とを特徴とする油圧さく岩槻の制御装置。[Scope of Claims] 1. Hydraulic oil is supplied from the hydraulic pumps for impact, rotation, and feed to the hydraulic actuators for impact, rotation, and feed, respectively, to drive them, and the hydraulic pump for control drives the hydraulic actuators for impact, rotation, and feed, respectively. For rotation,
In the hydraulic circuit that is connected to the operating circuit through each manual pilot valve for feeding and controls the operation of each actuator, a pressure switch is connected to the main main pipe for feeding, and an electric signal from the pressure switch is connected to the hydraulic circuit that controls the operation of each actuator. Iwatsuki's hydraulic control device is characterized by having a two-position forward/reverse solenoid switching valve inserted in the middle of a feed pilot conduit. 2 The hydraulic pumps for impact, rotation, and feed supply pressure oil to the hydraulic actuators for impact, rotation, and feed, respectively, and drive them, and the control hydraulic pumps supply hydraulic oil for impact, rotation, and feed, respectively.
In the hydraulic circuit that is connected to the operating circuit through each manual pilot valve for feeding and controls the operation of each actuator, a pressure switch is connected to the main main pipe for feeding, and a pressure switch is connected to the main main pipe for rotation. A control device for a hydraulic pump Iwatsuki, characterized in that a two-position electromagnetic switching valve, which is connected to the pressure switch and operates in response to an electric signal from one of the pressure switches, is inserted in the middle of a feed pilot pipe line. . 3 Hydraulic oil is supplied from the hydraulic pumps for impact, rotation, and feed to the hydraulic actuators for impact, rotation, and feed, respectively, to drive them, and the control hydraulic pump supplies hydraulic actuators for impact, rotation, and feed, respectively.
In the hydraulic circuit that is connected to the operating circuit through each manual pilot valve for feeding and controls the operation of each actuator, a pressure switch is connected to the main main pipe for feeding, and a pressure switch is connected to the main main pipe for rotation. A two-position electromagnetic switching valve, which operates in response to an electric signal from one of the pressure switches, is inserted in the middle of the feed pilot pipe, and a pressure switch is connected to the main rotation pipe. A control device for a hydraulic Iwatsuki drill, characterized in that an electromagnetic switching valve that can be opened or opened twice and operated in response to an electric signal from the pressure switch is connected to a drain circuit of a main conduit for striking.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15253677A JPS5855319B2 (en) | 1977-12-19 | 1977-12-19 | Hydraulic rock drill control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15253677A JPS5855319B2 (en) | 1977-12-19 | 1977-12-19 | Hydraulic rock drill control device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5484801A JPS5484801A (en) | 1979-07-06 |
| JPS5855319B2 true JPS5855319B2 (en) | 1983-12-09 |
Family
ID=15542579
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15253677A Expired JPS5855319B2 (en) | 1977-12-19 | 1977-12-19 | Hydraulic rock drill control device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5855319B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0134822Y2 (en) * | 1983-09-26 | 1989-10-24 | ||
| WO1991000377A1 (en) * | 1989-06-30 | 1991-01-10 | The Regents Of The University Of California | Process for making diamond, doped diamond, diamond-cubic boron nitride composite films at low temperature |
| JP2015155639A (en) * | 2014-02-13 | 2015-08-27 | ソレタンシュ フレシネＳｏｌｅｔａｎｃｈｅ Ｆｒｅｙｓｓｉｎｅｔ | Method and apparatus for cutting reinforced concrete mass, and disassembly method of storage building |
-
1977
- 1977-12-19 JP JP15253677A patent/JPS5855319B2/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0134822Y2 (en) * | 1983-09-26 | 1989-10-24 | ||
| WO1991000377A1 (en) * | 1989-06-30 | 1991-01-10 | The Regents Of The University Of California | Process for making diamond, doped diamond, diamond-cubic boron nitride composite films at low temperature |
| JP2015155639A (en) * | 2014-02-13 | 2015-08-27 | ソレタンシュ フレシネＳｏｌｅｔａｎｃｈｅ Ｆｒｅｙｓｓｉｎｅｔ | Method and apparatus for cutting reinforced concrete mass, and disassembly method of storage building |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5484801A (en) | 1979-07-06 |
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